ZyXEL Prestige routers, including P-660 and P-661 models with firmware 3.40(AGD.2)…
Priority LOW 31CWE-264Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
ZyXEL Prestige routers, including P-660 and P-661 models with firmware 3.40(AGD.2) through 3.40(AHQ.3), allow remote authenticated users to gain privileges by accessing administrative URIs, as demonstrated by rpSysAdmin.html.
Why it matters now
EPSS 0.01096 65th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:zyxel:prestige_660:h-d1:*:*:*:*:*:*:* | h-d1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:prestige_660:h-d3:*:*:*:*:*:*:* | h-d3 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:prestige_661:hw-d1:*:*:*:*:*:*:* | hw-d1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:agd.2:*:*:*:*:*:* | 3.40 agd.2 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:agl.3:*:*:*:*:*:* | 3.40 agl.3 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:ahq.0:*:*:*:*:*:* | 3.40 ahq.0 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:ahq.3:*:*:*:*:*:* | 3.40 ahq.3 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:ahz.0:*:*:*:*:*:* | 3.40 ahz.0 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:zynos:3.40:atm.0:*:*:*:*:*:* | 3.40 atm.0 | Vulnerable | Zyxel |
- cpe:2.3:h:zyxel:prestige_660:h-d1:*:*:*:*:*:*:* Versions h-d1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:prestige_660:h-d3:*:*:*:*:*:*:* Versions h-d3 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:prestige_661:hw-d1:*:*:*:*:*:*:* Versions hw-d1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:agd.2:*:*:*:*:*:* Versions 3.40 agd.2 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:agl.3:*:*:*:*:*:* Versions 3.40 agl.3 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:ahq.0:*:*:*:*:*:* Versions 3.40 ahq.0 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:ahq.3:*:*:*:*:*:* Versions 3.40 ahq.3 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:ahz.0:*:*:*:*:*:* Versions 3.40 ahz.0 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:zynos:3.40:atm.0:*:*:*:*:*:* Versions 3.40 atm.0 Vulnerable ·Zyxel
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2008-1521
- 2026-10-03 Alias added: GHSA-hwpq-rvwc-x473
References
More Zyxel Prestige 660 vulnerabilities
- TI-2008-01461 ZyXEL Prestige routers, including P-660, P-661, and P-662 models with firmware 3.40(PE9)… CVSS 2.0HIGH 7.5
- TI-2008-01458 The SNMP service on ZyXEL Prestige routers, including P-660 and P-661 models with… CVSS 2.0HIGH 7.5
- TI-2008-01456 ZyXEL Prestige routers, including P-660 and P-661 models with firmware 3.40(AGD.2)… CVSS 2.0HIGH 7.5
- TI-2008-01463 ZyXEL Prestige routers have a minimum password length for the admin account that is too… CVSS 2.0MEDIUM 5.0
- TI-2008-01459 The default SNMP configuration on ZyXEL Prestige routers, including P-660 and P-661… CVSS 2.0MEDIUM 5.0
- TI-2008-01457 ZyXEL Prestige routers, including P-660, P-661, and P-662 models with firmware… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2008-1521 · CVE Program
- CVE-2008-1521 · NVD
- FIRST EPSS
- GHSA-hwpq-rvwc-x473 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences